When you're outside and ready to sweat, put on wraparound sunglasses, which physically block out pollen or other allergens to keep your eyes from getting itchy and watery. If it's your nose that tends to get red and irritated, wear a bandana around your neck so you can hike it up for protection if necessary, says Paul. Once you're back inside, shower and wash your hair as soon as you can to physically wash pollen off.